中国物理B ›› 2009, Vol. 18 ›› Issue (12): 5523-5533.doi: 10.1088/1674-1056/18/12/066
陈晓波1, 王策1, 杨国建2, 彭芳麟2, 康栋国3, Naruhito Sawanobori4, Masaaki Ohtsuka4, Gregory J. Salamo5
Chen Xiao-Bo(陈晓波)a)†,Wang Ce(王策)a), Gregory J. Salamob), Naruhito Sawanoboric),Kang Dong-Guo(康栋国) d), Masaaki Ohtsukac), Yang Guo-Jian(杨国建)a)e), and Peng Fang-Lin(彭芳麟)a)e)
摘要: The widely used energy transfer theory is a foundation of luminescence, in which the rates of Stokes and anti-Stokes processes have the same calculation formula. An improvement on the anti-Stokes energy transfer to explain the fluorescence intensity reversal between the red and green fluorescence of Er(0.5)Yb(9.5):FOV is reported in the present article. The range of the intensity reversal \varSigma was measured to be 877. Dynamic processes for 16 levels were simulated. A coefficient, the improvement factor of the intensity ratio of Stokes to anti-Stokes processes in quantum Raman theory compared to classical Raman theory, is introduced to successfully describe the anti-Stokes energy transfer. A new method to calculate the distance between the rare earth ions, which is critical for the energy transfer calculation, is proposed. The validity of these important improvements is also proved by experiment.
中图分类号: (Amorphous materials; glasses and other disordered solids)